nod 英 [nɒd] 美 [nɑːd]
v.点头;点头致意;点头示意;(朝…方向)点头(表示所谈论的人或物)
n.点头
第三人称单数： nods；现在分词： nodding；过去式： nodded；过去分词： nodded
例句：
I asked him if he would help me and he nodded.
我问他能不能帮我一下，他点了点头。
She nodded as a sign for us to sit down.
她点头示意我们坐下。
She could only nod, because her mouth was full.
她只能点点头，因为她口里塞满了东西。
Everything could be done by a nod and a wink.
每件事只靠点拨一下就能办妥了。
She nodded in agreement, and he saw he had carried his point.
她同意地点点头，他明白他的话已收到效果。
